Malicious PDF — malware analysis report

Static analysis result for SHA-256 0221d8d498b66e2b…

MALICIOUS

PDF

40.6 KB Created: 2020-08-08 21:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e5efec7a1d343c5bd43673dd2e7c6b0 SHA-1: 202039226b81c0e46019fe7ce5afff3753b49436 SHA-256: 0221d8d498b66e2b0f8e34ea5d7b5f6abd15a38aa28c72742bdc9ab6fe01b096
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body text, though heavily obfuscated, includes the same malicious URL and other URLs that appear to be part of an SEO link farm. The primary malicious URL is designed to lure users into downloading what appears to be a benign document, but instead redirects them to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=neck+exercises+for+cervical+spondylosis+pdf In PDF document text
    • http://files.zachroyer.com/uploads/1/3/2/7/132741241/bezetejakevu.pdfIn PDF document text
    • http://files.nuvoicesla.org/uploads/1/3/0/8/130813357/kedonisekesuta-zetemulowedarig-tiduzuxupetez.pdfIn PDF document text
    • http://files.marinaredlich.com/uploads/1/3/0/9/130969598/fc2135835.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4079/5806/files/present_perfect_tense_exercises_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1766/4674/files/boredom_a_lively_history_peter_toohey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4939/2030/files/diwavugizawiluxakepobidet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/76916894435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/pobodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sovaratumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/56841367936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/56146244107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/6466/7810/files/panduan_akreditasi_rumah_sakit_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0166/5960/files/recumbent_bicycle_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3824/5017/files/rumuzebemogosunerosap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6467/0873/files/imei_random_number.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6146 5412 bytes
SHA-256: b19e897e0a2968ea6050e2bfd1c0ba1c6c6843eb4d76ae56c6b314fcf779a726
font_01_sfnt_off000073da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DA 9864 bytes
SHA-256: c4ab903e4ecf513568ad325eccc86ec2969553e398635be68b45d3def1e5ca37

Open this report in the interactive analyzer, or submit your own file for analysis.